Circuit Recommended For The Audio Interface - Huawei MU709 Series Hardware Manual

HUAWEI MU709 Series HSPA+ Mini PCIe Module
Hardware Guide

3.7.2 Circuit Recommended for the Audio Interface

Figure 3-10 Circuit diagram of the interface of the PCM (MU709 module is used as PCM
master)
Figure 3-11 Circuit diagram of the interface of the PCM (MU709 is used as PCM slave)
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MU709 module supports both master and slave mode.
PCM_SYNC and PCM_CLK: Output when PCM is in master mode; Input when PCM is in
slave mode.
It is recommended that a TVS be used on the related interface, to prevent electrostatic
discharge and protect integrated circuit (IC) components.
Description of the Application Interfaces
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Issue 04 (2015-06-25)
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